Cline

Cline ships one agent core through four front ends: a VS Code extension, a JetBrains plugin, a terminal CLI that also runs headless for CI, and a native desktop app for macOS and Windows. An SDK on npm exposes the same engine for building your own agents and integrations.

It works across a project rather than a file at a time, watching linter and compiler output as it goes, and in the IDE clients every edit arrives as a diff you can review, modify or revert, with checkpoints behind it. Plan mode explores and proposes; Act mode carries the plan out, asking approval on each file edit and terminal command unless auto-approve is on. Project conventions go into .clinerules files that the CLI and both IDE clients pick up. Model choice stays open, from hosted providers down to Ollama or LM Studio on your own machine.